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Re: [PATCH 5/5] x86/feature: Detect the x86 feature Indirect Branch Prediction Barrier




On Fri, 2018-01-12 at 09:31 -0600, Tom Lendacky wrote:
> 
> AMD will follow the specification that if cpuid ax=0x7, return rdx[26]
> is set, it will indicate both MSR registers and features are supported.
> 
> But AMD also has a separate bit for IBPB (X86_FEATURE_PRED_CMD) alone.
> As all of the IBRS/IBPB stuff happens, that patch will follow.

Please let's roll it into the patch set. I don't want Intel posting
deliberately AMD-ignoring patches. Sort it out, guys.

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